Filter and vapor lock controller



Feb. l2, 1952 W. J. LINN `Filed Oct. 16, 1946 FILTER ND VAPOR LOCK CONTROLLER Patented Feb. 12, 1952 UNITED STATES PATENT OFFICE FILTER AND VAPOR LOCK CONTROLLER William J. Linn, Pittsburgh, Pa. Application October 16, 1946, Serial No. 703,565

s claims.

This invention relates to new and useful improvements in vapor lock controller, lter and condenser combined which is interposed between the fuel pump and the carbureter of an internal air thereby restricting the supply of fuel mixture to the cylinders of the engine, thus causing to` stall the engine.

One of the objects of the invention is to provide a simple device which will almost eliminate and control vapor lock.

Another object of the present invention is to provide a device which serves as a fuel lter which is adapted to separate and precipitate foreign matter carried by the gasoline.

Still another object of the invention is to provide a device with a filter which comprises a reservoir having an inlet and an outlet port and absorbent filtering material forming a yielding partition wall between said ports.

Yet another object of the invention is to provide a vapor lock controller with a cover which is provided with condensing means adapted to condense any vapors before leaving the device.

Another object of the invention is to provide a device which will control vapor lock by feeding only liquid fuel into the carbureter, thereby preventing stalling of the engine, especially when idling any length of time, and effect easy starting.

Still another object of the invention is to provide a device interposed between the fuel pump and the carbureter which serves as a fuel filter and which condenses accumulated fuel vapors, caused by excessive heat in the fuel line, before it enters the carbureter.

A further object of the invention is to provide a combination vapor lock controller, filter and condenser with a gasket of thermal insulating material interposed between the reservoir and the cover.

The presentl invention includes other lobjects residing in the particular construction and relation of parts which are more particularly pointed out in the following detailed description, and in the claims directed to a preferred form of construction, it being understood however, that various changes in thesize, shape and relation of the parts may be made without departing from the spirit or scope of the invention as herein set forth.

In the drawing wherein like numerals of reference designate corresponding parts throughout the several views,

Figure 1 is a vertical sectional view of the device on line lI in Figure 3.

Figure 2 is a vertical sectional View of the device on line 2-2 in Figure 1, partly in outline.

Figure 3 is a top view of the device.

Figure 4 is a horizontal section of the device taken on line 4-4 in Figure l with portion of the foraminous disc broken away toshown the fibrous ltering material or bat.

Figure 5 is a horizontal sectional view on line 5 5 in Figure 1 showing the inlet ports of the device.

Referring now to the drawing, l0 represents a bowl or reservoir having a botto-m II which is provided with an inlet opening I2 which extends across the under portion I3 of the bottom Il and terminates outwardly forming an extension I4 which is provided with threads I5 to receive a tube I6 which connects the pump (not shown) with the inlet opening I2 of the device.

The bottom Il is also providedwith slotted ports I1 through which the liquid from the inlet opening enters the reservoir I0.

A rod I8 is centrally secured to the bottom I I of the reservoir I0 by means of `a head I9 preferably cast into the material. The upper end 20 of said rod I8 is threaded to receive a threaded nut '2| which serves to adjust the tension of the spring 22 which is coiled around the rod I8.

The cover 23 is especially designed to serve as a condenser for the vapors which accumulate at the top of the liquid fuel in the reservoir. This is accomplished by providing a plurality of upstanding hollow thimbles or protuberances 24, as clearly shown in Figures 1 to 3 inclusive.

A gasket 25 is interposed between the uppermost face 26 of the reservoir rim 21 and the lower face 28 of the cover 23. This gasket has a dual purpose, one to prevent leakage and one to heat insulate the cover from the reservoir.

The said cover 23 is secured to the reservoir IIJ by providing a centrally disposed threaded boss 29 on the cover into which the threaded portion of the rod I8 screws.

A bat 30, which may be formed of felt or other porous or absorbent material suitable for filtering, may be used and placed on the bottom of said reservoir and on top of said bat 3 is placed a perforated disc 3| which is held in position by the coil spring 22 by means of which more or less compression may be exerted against the brous bat 30 by loosening or tightening the nut 2|.

ize, the rising vapors will contact the interior" surface of the thimbles or protuberances221i"offv the cover 23 which are usually cooled bythe fan on the engine and additionally heat insulated by" turn to the reservoir in liquid form thus eliminating vapor lock in the carbureter of the engine.

It is obvious that the "invention is applicable to any internalvcombustion f engine of fthe Vcarbureter--type-,f although -its chief -eld of autility' is in the automotive and aviation engine.;

` Although -I have`` illustrated anddescribed herein but one present,` preferred embodiment*- oftheinventon, 'it-Will be-apparent lthat it; may be 'practiced' nall otherfforms AWithout-'-depart;- ing from the'spirit "of' the `invention ori'scopeof the appended" claims.v

1. AI 'lterandyaporlock controllerJ adapted to be connected in the fuel'supplyline'of ianiinlm ternal combustion engine comprising 'a" hollow body having" spaced 'inlet andoutlehportsyan" intermediate Wall extendingY transversely ofy said body .adjacent the inlet'portbetween' the inlet and .outlet ports, at least one port in said intermediate .Wallfor the passage yof fuel,filtering.'

means normally seated on lsaid intermediate walL A.

astem extendingcentrally through said body,

intermediate .wall and ltering.-means, s compression meansY 'disposed about said stemdand `coopevr erating therewthl to .hold the filtering means yieldably. against the intermedi-ate wa1l,.a.cover member for said bodythreadinglyengaginggthe.

stem,...a.pluralty o hollotvthimbles extending ber and lsaid "body.

2. Aflterand vapor lock-'controller asl claimedy in claim 1 in which the compressive means is a perforated plate held against the ltering means by a spring fixed to the stem.

3. A lter and vapor lock controller adapted to be connected in the fuel supply line of an internal combustion engine comprising a hollow body having spaced inlet and outlet ports, an intermediate wall extending transversely of said body"A adjacent'the inlet port" between the inlet and-"outlet" port, at leastone port' in'sai'd intermediate wall for the passage of fuel, a filter pad normally seated on said intermediate wall, a stem extendingpthroughfsaid body and pad from the intermediate wall, a perforated plate on the lterpadfiopposite the intermediate Wall, spring ,meansdisposed.:about the stem and resting on the perforated plate, adjusting means on the stem "controlling the pressure exerted by the spring against the perforated plate, a cover memberflfor-1 said body .threadin'glyengaging thestem,

a-plurality of: .hollowcthimbles extending beyondi thespla'ne-of--theaipper surface ofthe cover .mem-Rf bei', and ani insulating 'and sealing ringbetweenf said cover member and said bodyi.l--

WILLIAM J.- LINN:r

REFERENCES; CITED.

Thefo'l'lowing references-arefof"record in lthe'.

iile of'this patent:

UNITED sTTEs.."PATENTs I Number.: Name. Date 1,061,755 Kneufer Mayrl 13,21913 1,102,685. Proper ..Ju1y 7,. 1914 1,506,967. Bosworth..- Sept. .2, 1924'. 1,580,470 Duby nApr.. 13,1 1926.. 1,582,859: Shepherd r Apri 27,' 1926 1,941,311l McLean. Dec. 26,.l1933I 2,072,393". Briggs Mar.: 2,'fi1937l 2,145,535 Vokes-f Jan. -31,l 1939 2,197,471` Hooper'- Apr-16,1940 2,268,884 Linn- Ja'n..6,21942A 2,352,315 l Gilbert .June 271944fY 2,460,08453 vH'ebo-vv Jan.25,'^19492 FOREIGN'V PATENTS Niimberz. Country;1 Date 29,9.51 Great Britain. A. D. :1912i 348,657 Germany .Feb; 13, 1922. 372,606".v Germany Mar. 29,.v 1923 

